Answer / bramhireddy

change the supply terminal when it comes to zero speed disconnect the terminals.

Answer / k.prakashchandra

Because supply is cut off.The capacitor of start coil can
not prolong the switching off as it discharges at DC and
gets discharged immediately in the coil.

why we can use 1 to 5V dc

0 Answers  

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What is meant by soft starter used in motors?

4 Answers  

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60 watts bulb and resistor home heater is connected in series and 230v is given to the circuit. The heater is giving some amount of heat. If instant of 60 watts bulb replace 100 watts bulb what will be the output of the heater?

2 Answers   NPCIL,

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can we use breather in a SEALED power or distribution transfomer instead of injecting nitrogen.

1 Answers  

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what's burden resistor, why it's used?

1 Answers   Bhel, TVS Group,

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if installing the transformer why put the sprit the stone ?

1 Answers  

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Why should we use jelly filled armoured cables in underground Communication system? What is the use of the Jelly? If we go for unarmoured, then what happens?

1 Answers   Prasad Group,

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if main CT is of ratio 50/5, and meter CT is -/5 what will be overall multiplying factor of meter.PT is 11000/110 .

0 Answers   BSNL,

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Explain the working principle of Vacuum circuit breaker and Air circuit breaker

10 Answers   HP, Trinidad and Tobago Electricity Commission T TEC,

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Why the pointer of earthing of 3 pin top is made thick and long compared to the phase and neutral pin ?

3 Answers   Sanima Hydro Power,

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why is a power transformer used only occasionally?it is used to step up at generating stations?and that needs to be done all day long !!!!!!!

0 Answers  

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WHY SPEAKER OUTPUT IN WATTS??

2 Answers  

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